我想知道为什么每次我在移动视图中刷新页面时导航项都会一直显示。我检查了 aria-expanded: false 但它仍然不起作用。
这是我的代码：
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Bootstrap CSS -->
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-F3w7mX95PdgyTmZZMECAngseQB83DfGTowi0iMjiWaeVhAn4FJkqJByhZMI3AhiU" crossorigin="anonymous">
<link rel="stylesheet" href="style.css">
<title>Portfolio</title>
</head>
<body>
<header>
<nav class="navbar navbar-expand-lg fixed-top navbar-light">
<div class="container-fluid justify-content-between mx-5 px-4">
<a class="navbar-brand" href="#">HELLO</a>
<button
class="navbar-toggler collapse collapsed"
type="button"
data-bs-toggle="collapse"
data-bs-target="#navbarCollapse"
aria-controls="navbarTogglerDemo02"
aria-expanded="false"
aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse" id="navbarCollapse">
<ul class="navbar-nav ms-auto">
<li class="navbar-item">
<a class="nav-link active " aria-current="page" href="#">ABOUT</a>
</li>
<li class="navbar-item">
<a class="nav-link active" aria-current="page"href="#">PROJECT</a>
</li class="navbar-item">
<li class="navbar-item">
<a class="nav-link active" aria-current="page" href="#">RESUME</a>
</li>
<li class="navbar-item">
<a class="nav-link active" aria-current="page" href="#">CONTACT</a>
</li>
</ul>
</div>
</div>
</nav>
<!-- <img class="img-fluid" src="img\heading-image.jpg" alt=""> -->
</header>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-/bQdsTh/da6pkI1MST/rWKFNjaCP5gBSY4sEBT38Q/9RBh9AH40zEOg7Hlq2THRZ" crossorigin="anonymous"></script>
<script src="script.js"></script>
</body>
</html>
请注意：我仍然是引导程序、html 和 css 的初学者。
collapse collapsed从按钮中删除类并添加collapse到菜单 div
这是完整的代码
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Bootstrap CSS -->
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-F3w7mX95PdgyTmZZMECAngseQB83DfGTowi0iMjiWaeVhAn4FJkqJByhZMI3AhiU" crossorigin="anonymous">
<link rel="stylesheet" href="style.css">
<title>Portfolio</title>
</head>
<body>
<header>
<nav class="navbar navbar-expand-lg fixed-top navbar-light"
<a class="navbar-brand" href="#">HELLO</a>
<button
class="navbar-toggler "
type="button"
data-bs-toggle="collapse"
data-bs-target="#navbarCollapse"
aria-controls="navbarCollapse"
aria-expanded="false"
aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse " id="navbarCollapse">
<ul class="navbar-nav ms-auto">
<li class="navbar-item">
<a class="nav-link active " aria-current="page" href="#">ABOUT</a>
</li>
<li class="navbar-item">
<a class="nav-link active" aria-current="page"href="#">PROJECT</a>
<li class="navbar-item">
<li class="navbar-item">
<a class="nav-link active" aria-current="page" href="#">RESUME</a>
</li>
<li class="navbar-item">
<a class="nav-link active" aria-current="page" href="#">CONTACT</a>
</li>
</ul>
</div>
</nav>
<!-- <img class="img-fluid" src="img\heading-image.jpg" alt=""> -->
</header>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-/bQdsTh/da6pkI1MST/rWKFNjaCP5gBSY4sEBT38Q/9RBh9AH40zEOg7Hlq2THRZ" crossorigin="anonymous"></script>
<script src="script.js"></script>
</body>
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我来说两句